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HIV functional impairment

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https://www.readbyqxmd.com/read/29782827/prevalence-and-risk-factors-of-mild-chronic-renal-failure-in-hiv-infected-patients-influence-of-female-gender-and-antiretroviral-therapy
#1
Marina Pontello Cristelli, Joan Carles Trullàs, Federico Cofán, Naira Rico, Christian Manzardo, Juan Ambrosioni, Josep Lluis Bedini, Asunción Moreno, Fritz Diekmann, Jose Maria Miro
BACKGROUND: In people living with HIV, much is known about chronic kidney disease, defined as a glomerular filtration rate under 60mL/min. However, there is scarce data about prevalence and risk factors for milder impairment (60-89mL/min). OBJECTIVE: The present study aims to assess the influence of sex, antiretroviral therapy, and classical risk factors on the occurrence of mild decreased renal function in a large Spanish cohort of HIV-infected patients. METHODS: Cross-sectional, single center study, including all adult HIV-1-infected patients under antiretroviral treatment with at least two serum creatinine measures during 2014, describing the occurrence of and the risk factors for mildly decreased renal function (eGFR by CKD-EPI creatinine equation of 60-89mL/min)...
May 18, 2018: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29781879/cognitive-burden-of-common-non-antiretroviral-medications-in-hiv-infected-women
#2
Leah H Rubin, Kendra K Radtke, Seenae Eum, Bani Tamraz, Krithika N Kumanan, Gayle Springer, Pauline M Maki, Kathryn Anastos, Daniel Merenstein, Roksana Karim, Kathleen M Weber, Deborah Gustafson, Ruth M Greenblatt, Jeffrey R Bishop
OBJECTIVE: The aging HIV population has increased comorbidity burden and consequently non-antiretroviral (ARV) medication utilization. Many non-ARV medications have known neurocognitive-adverse effects ("NC-AE medications"). We assessed the cognitive effects of NC-AE medications in HIV+ and HIV- women. METHODS: 1558 participants (1037 HIV+; mean age 46) from the Women's Interagency HIV Study completed a neuropsychological test battery between 2009 and 2011...
May 16, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29777500/methamphetamine-associated-dysregulation-of-the-hypothalamic-pituitary-thyroid-axis
#3
Deborah L Jones, Adam W Carrico, Suat Babayigit, Violeta J Rodriguez, Carlos Aguila, Mahendra Kumar
Methamphetamine and HIV impair thyroid function, but few studies have investigated their combined effects on thyroid dysregulation. This study examined the associations of methamphetamine use alone and in combination with HIV on thyroid function among men in South Florida. Measures of thyroid function in methamphetamine-using, HIV-infected (METH+HIV+; n = 127) and HIV-negative (METH+HIV-; n = 46) men who have sex with men (MSM) were compared to non-methamphetamine-using, HIV-negative men (METH-HIV-; n = 136)...
May 17, 2018: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/29777462/a-composite-of-multisystem-injury-and-neurocognitive-impairment-in-hiv-infection-association-with-everyday-functioning
#4
María J Marquine, Ilse Flores, Rujvi Kamat, Neco Johnson, Anya Umlauf, Scott Letendre, Dilip Jeste, Igor Grant, David Moore, Robert K Heaton
The Veterans Aging Cohort Study (VACS) Index is a composite marker of multisystem injury among HIV-infected persons. We aimed to examine its cross-sectional association with functional outcomes, after considering neurocognitive impairment (NCI) and other well-established correlates of everyday functioning among HIV-infected persons. Participants included 670 HIV-infected adults (ages 18-76; 88% male; 63% non-Hispanic White; median current CD4 = 404 cells/mm3 ; 67% on antiretroviral therapy; AIDS = 63%) enrolled in observational studies at the University of California San Diego HIV Neurobehavioral Research Program...
May 17, 2018: Journal of Neurovirology
https://www.readbyqxmd.com/read/29771285/increased-dolutegravir-peak-concentrations-in-people-living-with-hiv-aged-60-and-over-and-analysis-of-sleep-quality-and-cognition
#5
Emilie R Elliot, Xinzhu Wang, Suveer Singh, Bryony Simmons, Jaime H Vera, Robert F Miller, Colin Fitzpatrick, Graeme Moyle, Myra McClure, Marta Boffito
Background: Demographic data show an increasingly aging HIV population worldwide. Recent concerns over dolutegravir-related neuropsychiatric toxicity have emerged, particularly amongst older HIV patients. We describe the pharmacokinetics (PK) of dolutegravir (DTG) 50mg once daily in people living with HIV (PLWH) aged 60 and older. Additionally, to address the call for prospective neuropsychiatric toxicodynamic data, we evaluate changes in sleep quality and cognitive function after switching to abacavir (ABC)/lamivudine (3TC)/DTG, over 6 months in this population...
May 16, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29746300/impact-of-glycemic-status-on-longitudinal-cognitive-performance-in-men-with-and-without-hiv-infection
#6
Jingyan Yang, Lisa P Jacobson, James T Becker, Andrew Levine, Eileen M Martin, Cynthia A Munro, Frank J Palella, Jordan E Lake, Ned C Sacktor, Todd T Brown
OBJECTIVES: To determine the relationship between glycemic status and cognitive performance in men living with (MLWH) and without HIV infection. DESIGN: A prospective HIV/AIDS cohort study in four U.S. cities between 1999 and 2016. METHODS: Glycemic status was categorized as normal glucose (NG), impaired fasting glucose (IFG), controlled diabetes mellitus (DM) and uncontrolled DM at each semi-annual visit. Cognitive performance was evaluated using nine neuropsychological tests which measure attention, constructional ability, verbal learning, executive functioning, memory, and psychomotor speed...
May 8, 2018: AIDS
https://www.readbyqxmd.com/read/29746297/microglial-activation-is-inversely-associated-with-cognition-in-individuals-living-with-hiv-on-effective-antiretroviral-therapy
#7
Leah H Rubin, Ned Sacktor, Jason Creighton, Yong Du, Christopher J Endres, Martin G Pomper, Jennifer M Coughlin
OBJECTIVE: Despite viral suppression, HIV-associated cognitive impairment persists and may be partially due to persistent immune signaling by cells of the myeloid-lineage. Here we aimed to understand the contribution of activated microglia located in vulnerable brain regions (e.g., frontal, subcortical) of HIV-infected, virally suppressed (HIV+VS) individuals in relation to cognitive and motor function. DESIGN: 21 HIV+VS individuals underwent positron emission tomography (PET) with [C]DPA-713 to image the translocator protein 18 KDa (TSPO), a marker of microglial activation, and completed a comprehensive neuropsychological test battery...
May 9, 2018: AIDS
https://www.readbyqxmd.com/read/29743357/the-antiviral-activity-of-the-cellular-glycoprotein-lgals3bp-90k-is-species-specific
#8
Veronika Lodermeyer, George Ssebyatika, Vânia Passos, Aparna Ponnurangam, Angelina Malassa, Ellen Ewald, Christina M Stürzel, Frank Kirchhoff, Margalida Rotger, Christine S Falk, Amalio Telenti, Thomas Krey, Christine Goffinet
Cellular antiviral proteins interfere with distinct steps of replication cycles of viruses. The galectin 3 binding protein (LGALS3BP, also known as 90K) was previously shown to lower the infectivity of nascent HIV-1 virions when expressed in virus-producing cells. This antiviral effect was accompanied by impaired gp160Env processing and reduced viral incorporation of mature Env glycoproteins. Here, we examined the ability of 90K orthologs from primate species to reduce particle infectivity of distinct lentiviruses...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29741401/comparison-of-%C3%AE-2-microglobulin-serum-level-between-alzheimer-s-patients-cognitive-healthy-and-mild-cognitive-impaired-individuals
#9
Roberto Dominici, Dario Finazzi, Letizia Polito, Emanuela Oldoni, Giovanna Bugari, Alessandro Montanelli, Elio Scarpini, Daniela Galimberti, Antonio Guaita
BACKGROUND: Several studies performed in the last years on the brain, showed that beta2-microglobulin (β2m) and MHC can act independently of their canonical immune function to regulate normal brain development, synaptic plasticity and behaviour. Increased systemic levels of soluble β2m have been implicated in cognitive impairments like that associated with chronic hemodialysis, or aortic valve replacement. Increased soluble β2m has also been detected in the cerebral spinal fluid (CSF) of patients with HIV-associated dementia and Alzheimer's disease...
May 9, 2018: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/29737506/hiv-1-protein-tat-1-72-impairs-neuronal-dendrites-via-activation-of-pp1-and-regulation-of-the-creb-bdnf-pathway
#10
Yu Liu, Deyu Zhou, Jiabin Feng, Zhou Liu, Yue Hu, Chang Liu, Xiaohong Kong
Despite the success of combined antiretroviral therapy in recent years, the prevalence of human immunodeficiency virus (HIV)-associated neurocognitive disorders in people living with HIV-1 is increasing, significantly reducing the health-related quality of their lives. Although neurons cannot be infected by HIV-1, shed viral proteins such as transactivator of transcription (Tat) can cause dendritic damage. However, the detailed molecular mechanism of Tat-induced neuronal impairment remains unknown. In this study, we first showed that recombinant Tat (1-72 aa) induced neurotoxicity in primary cultured mouse neurons...
May 8, 2018: Virologica Sinica
https://www.readbyqxmd.com/read/29736073/a-study-of-neuropsychological-profile-of-human-immunodeficiency-virus-positive-children-and-adolescents-on-antiretroviral-therapy
#11
Vasantmeghna S Murthy, Ajita S Nayak, Minal K Joshi, Kaneenica Ninawe
Aims: The aim is to study the neuropsychological and functional profile of children and adolescents with human immunodeficiency virus (HIV) infection on antiretroviral therapy (ART) and the association between the neuropsychological status and medical illness variables, treatment variables, and functional status in the cases of the sample and compare with normal controls. Materials and Methods: Forty-two HIV-positive children and adolescents on ART were evaluated and compared with 40 matched controls not known to be HIV-positive...
January 2018: Indian Journal of Psychiatry
https://www.readbyqxmd.com/read/29734219/correlation-between-inner-retinal-layer-thickness-and-cognitive-function-in-hiv-new-insights-from-an-exploratory-study
#12
Alessandro Invernizzi, Alessandra Acquistapace, Sara Bochicchio, Chiara Resnati, Stefano Rusconi, Marta Ferrari, Valentina Leta, Simone Pomati, Alexander Klistorner, Peter Mccluskey, Giovanni Staurenghi, Agostino Riva
OBJECTIVE: to compare retinal layer thickness in human immunodeficiency virus (HIV) infected subjects with (CI-HIV) and without (NCI-HIV) cognitive impairment, with a control population and to correlate it with the cognitive status of the patient and other clinical parameters. DESIGN: single center cross-sectional study METHODS:: Subjects with controlled HIV infection aged between 40 and 70 years and sex and age matched controls were enrolled. Retinal nerve fiber layer (RNFL), ganglion cell layer (GCL) and inner plexiform layer (IPL) thickness were assessed using optical coherence tomography...
May 3, 2018: AIDS
https://www.readbyqxmd.com/read/29734217/dysregulation-of-apoptosis-and-autophagy-gene-expression-in-pbmcs-of-efficiently-treated-hiv-infected-patients
#13
Amandine Serrano, Saïd El Haddad, Frédéric Moal, Thierry Prazuck, Eric Legac, Chloé Robin, Fabienne Brule, Stéphane Charpentier, Thierry Normand, Alain Legrand, Laurent Hocqueloux, Lucile Mollet
OBJECTIVE: We measure the transcript levels of the pro-apoptotic GALIG, anti-apoptotic MCL1 genes and those of the autophagy genes BECN1, MAP1LC3B, ATG9a, P62/SQSTM1, GABARAP, GABARAPL1 and GABARAPL2 to define if mRNA alteration can characterize HIV infected patients effectively treated with combined antiretroviral therapy (cART). DESIGN: Monocentric pilot study conducted on PBMC of 40 uninfected donors and 27 HIV positive patients effectively treated by cART for at least 8...
May 3, 2018: AIDS
https://www.readbyqxmd.com/read/29733459/hiv-1-tat-regulation-of-dopamine-transmission-and-microglial-reactivity-is-brain-region-specific
#14
Douglas R Miller, Fatemeh Shaerzadeh, Leah Phan, Nesrin Sharif, Joyonna Gamble-George, Jay P McLaughlin, Wolfgang J Streit, Habibeh Khoshbouei
The transactivator of transcription protein, HIV-1 Tat, is linked to neuroAIDS, where degeneration of dopamine neurons occurs. Using a mouse model expressing GFAP-driven Tat protein under doxycycline (Dox) regulation, we investigated microglial-neuronal interactions in the rostral substantia nigra pars compacta (SNc). Immunohistochemistry for microglia and tyrosine hydroxylase (TH) showed that the ratio of microglia to dopamine neurons is smaller in the SNc than in the ventral tegmental area (VTA) and that this difference is maintained following 7-day Dox exposure in wild type animals...
May 7, 2018: Glia
https://www.readbyqxmd.com/read/29732416/associations-of-mood-on-objective-and-subjective-cognitive-complaints-in-persons-living-with-hiv-aids
#15
Moka Yoo-Jeong, Ashley Anderson, Akm Fazlur Rahman, Maya Baumann, Jade McBroom, Drenna Waldrop-Valverde
Healthcare workers commonly rely on patient self-report to identify problems with cognitive functioning among Persons Living with HIV (PLWH). Self-reported cognitive complaints may not accurately reflect objective cognitive performance and may be obscured by co-occurring depression. The purpose of the current study was to examine the relationships among depression, subjective cognitive complaints, and objective cognitive performance in PLWH using measures easily administered by healthcare workers. Particularly, this study assessed the association between subjective cognitive complaints (MOS-HIV) and objective cognitive performance (mHDS) using a simple screening tool, as well as whether depressive symptoms (CES-D 10) moderated this relationship...
2018: Journal of HIV and AIDS
https://www.readbyqxmd.com/read/29731256/antiretroviral-therapy-potentiates-high-fat-diet-induced-obesity-and-glucose-intolerance
#16
Mark E Pepin, Lindsey E Padgett, Ruth E McDowell, Ashley R Burg, Manoja K Brahma, Cassie Holleman, Teayoun Kim, David Crossman, Olaf Kutsch, Hubert M Tse, Adam R Wende, Kirk M Habegger
OBJECTIVE: Breakthroughs in HIV treatment, especially combination antiretroviral therapy (ART), have massively reduced AIDS-associated mortality. However, ART administration amplifies the risk of non-AIDS defining illnesses including obesity, diabetes, and cardiovascular disease, collectively known as metabolic syndrome. Initial reports suggest that ART-associated risk of metabolic syndrome correlates with socioeconomic status, a multifaceted finding that encompasses income, race, education, and diet...
April 20, 2018: Molecular Metabolism
https://www.readbyqxmd.com/read/29729309/hiv-glycoprotein-gp120-enhances-mesenchymal-stem-cell-migration-by-upregulating-cxcr4-expression
#17
Lei Li, Ryan Z L Lim, Lawrence S U Lee, Nicholas S Y Chew
BACKGROUND: HIV infection and/or the direct pathogenic effects of circulating HIV proteins impairs the physiological function of mesenchymal stem cells (MSCs), and contribute to the pathogenesis of age-related clinical comorbidities in people living with HIV. The SDF-1/CXCR4 pathway is vital for modulating MSC proliferation, migration and differentiation. HIV glycoprotein gp120 inhibits SDF-1 induced chemotaxis by downregulating the expression and function of CXCR4 in monocytes, B and T cells...
May 2, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29709610/effects-of-hiv-1-tat-protein-and-methamphetamine-exposure-on-visual-discrimination-and-executive-function-in-mice
#18
James P Kesby, Jerel A Fields, Ariel Chang, Hamza Coban, Cristian L Achim, Svetlana Semenova
Mild neurocognitive impairments are common in people with human immunodeficiency virus (HIV) infection. HIV-encoded proteins, such as trans-activator of transcription (TAT), contribute to neuropathology and cognitive function in medicated subjects. The combination of TAT and comorbid methamphetamine use may further impair neurocognitive function in HIV-positive individuals by affecting dopaminergic systems in the brain. The current study examined the effects of TAT protein expression and methamphetamine exposure on cognitive function and dopamine systems in mice...
April 27, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29707599/prevalence-and-evolution-of-renal-impairment-in-people-living-with-hiv-in-rural-tanzania
#19
Herry Mapesi, Aneth V Kalinjuma, Alphonce Ngerecha, Fabian Franzeck, Christoph Hatz, Marcel Tanner, Michael Mayr, Hansjakob Furrer, Manuel Battegay, Emilio Letang, Maja Weisser, Tracy R Glass
Background: We assessed the prevalence, incidence, and predictors of renal impairment among people living with HIV (PLWHIV) in rural Tanzania. Methods: In a cohort of PLWHIV aged ≥15 years enrolled from January 2013 to June 2016, we assessed the association between renal impairment (estimated glomerural filtration rate < 90 mL/min/1.73 m2 ) at enrollment and during follow-up with demographic and clinical characteristcis using logistic regression and Cox proportional hazards models...
April 2018: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29707388/risk-factors-and-co-morbidities-associated-with-changes-in-renal-function-among-antiretroviral-treatment-na%C3%A3-ve-adults-in-south-africa-a-chart-review
#20
Shirelle Assaram, Tivani P Mashamba-Thompson, Nombulelo P Magula
Introduction: Our systematic scoping review has demonstrated a research gap in antiretroviral treatment (ART) nephrotoxicity as well as in the long-term outcomes of renal function for patients on ART in South Africa. Bearing in mind the high prevalence of human immunodeficiency virus (HIV) in South Africa, this is of great concern. Objectives: To determine the risk factors and co-morbidities associated with changes in renal function in HIV-infected adults in South Africa...
2018: Southern African Journal of HIV Medicine
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